Nonlinear Interactions of Second Mode Instability with Natural and Artificial Disturbances

2003 ◽  
Author(s):  
Alexander Shiplyuk ◽  
Anatoly Maslov ◽  
Ndaona Chokani
Keyword(s):  
Nonlinear Interactions ◽  
Mode Instability ◽  
Second Mode

Simulation of Second-Mode Instability in a Real-Gas Hypersonic Flow with Graphite Ablation

AIAA Journal ◽  
2014 ◽  
Vol 52 (8) ◽  
pp. 1632-1652 ◽  
Author(s):  
Clifton H. Mortensen ◽  
Xiaolin Zhong
Keyword(s):  
Hypersonic Flow ◽  
Mode Instability ◽  
Real Gas ◽  
Second Mode

Measurements and Computations of Second-Mode Instability Waves in Several Hypersonic Wind Tunnels

2010 ◽  
Author(s):  
Dennis Berridge ◽  
Katya Casper ◽  
Shann Rufer ◽  
Christopher Alba ◽  
Daniel Lewis ◽  
...  
Keyword(s):  
Wind Tunnels ◽  
Mode Instability ◽  
Instability Waves ◽  
Second Mode

scholarly journals Linear, nonlinear and transitional regimes of second-mode instability

2020 ◽  
Vol 905 ◽  
Author(s):  
S. Unnikrishnan ◽  
Datta V. Gaitonde
Keyword(s):  
Mode Instability ◽  
Second Mode

Abstract

scholarly journals On the mechanism by which nose bluntness suppresses second-mode instability

2020 ◽  
Vol 10 (4) ◽  
pp. 230-240 ◽  
Author(s):  
Armani Batista ◽  
Arham Amin Khan ◽  
Joseph Kuehl
Keyword(s):  
Mode Instability ◽  
Second Mode

Evolution of nonlinear processes in a hypersonic boundary layer on a sharp cone

2008 ◽  
Vol 611 ◽  
pp. 427-442 ◽  
Author(s):  
D. BOUNTIN ◽  
A. SHIPLYUK ◽  
A. MASLOV
Keyword(s):  
Boundary Layer ◽  
Mach Number ◽  
Basic Mechanism ◽  
Hypersonic Boundary Layer ◽  
Nonlinear Interactions ◽  
Nonlinear Processes ◽  
Voltage Fluctuation ◽  
Second Mode ◽  
Sharp Cone ◽  
Second Mode Of Disturbances

Nonlinear processes in a hypersonic boundary layer on a sharp cone are considered using the bicoherence method. The experiments are performed for a Mach number M∞ = 5.95 with introduction of artificial wave packets at the frequency of the second mode. It is shown that the basic mechanism of nonlinear interaction at the location of the maximum r.m.s. voltage fluctuation is the subharmonic resonance; all nonlinear interactions in the maximum r.m.s. voltage fluctuation layer are related to the second mode of disturbances; nonlinear processes above and below that layer are much more intense than those in it. The effect of artificial disturbances on nonlinear interactions in the boundary layer is shown to be insignificant.

Numerical and experimental analysis of the first-and second-mode instability in a rotor-bearing system

2013 ◽  
Vol 84 (4) ◽  
pp. 519-541 ◽  
Author(s):  
Hui Ma ◽  
Hui Li ◽  
Heqiang Niu ◽  
Rongze Song ◽  
Bangchun Wen
Keyword(s):  
Experimental Analysis ◽  
Mode Instability ◽  
Second Mode ◽  
Rotor Bearing ◽  
Bearing System

Hypersonic Second Mode Instability Response to Shaped Roughness

2021 ◽  
Author(s):  
Andrew Leidy ◽  
Rudolph King ◽  
Meelan M. Choudhari ◽  
Pedro Paredes
Keyword(s):  
Mode Instability ◽  
Second Mode
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